Features: TheraBand FlexBar green is ideal for those suffering from tennis elbow pain and looking to increase flexibility and range of motionProven to reduce elbow pain by 81 Percent and increase strength in the tendons by 72 Percent in tennis elbow patients, Tyler twist with FlexBar is simple and worksRidged design is easy to grip and twist for elbow, wrist, forearm and hand rehabilitation and strengtheningFlexBar is portable and can be used with resistance bands or as a substitute for exercise bands for at-home workouts12 inch long, 1 3/4 inch diameter, made from dry natural rubber, takes 15 pounds of force to bend to a U-shape